The iPhone Duo has no SIM tray, so sort out your eSIM before the phone arrives
The iPhone Duo is eSIM only. Apple’s US store page says a Duo bought in the US or Puerto Rico has no physical SIM tray…
eSIM
How to Setup eSIM on Samsung Galaxy Watch (Also Remove it)
Did you get yourself a Galaxy Watch and wondering if you can use it standalone sometimes? Although this would consume more battery, the answer is…